That would be the proprietary Collage Generator™ software. Generically, a feature of most all presentation display systems. See the links in the wiki entry edge blending....but I think the software that runs the HES/Barco DL series moving lights could do that. ...
Can we maybe simplify this to asking what you are trying to do and the overall goal?
For example, is there a specific reason for 6 projectors? A 6m x 10m overall image is a 15:9 format but creating that with 6 projectors seems likely to relate to either a 3m x 3.33m nominal image per projector (2 projectors high and 3 wide) or a 2m x 5m nominal image per projector (3 projectors high by 2 wide). Overlap for edge blending will affect that actual projected image size, which would need to be slightly larger, but 3m x3.33m (1.11:1 format) and 2m x 5m (2.5:1 format) don't match up well with any common native projector formats. So is there a specific reason for 6 projectors or might 4 projectors (2x2) or 9 projectors (3x3) be an option?
Ultra-short throw projectors would seem to present several challenges for such an application. They are very particular about their location relative to the image, not just in the distance from the screen but also in the horizontal and vertical relationship to the image, so if you could get the desired image size with the throw distance available that would then dictate a specific position for each projector with little possible deviation. Because of the optics involved, the ultra-short throw projectors are also very limited in image adjustments, which makes them a poor choice for adjacent or edge blended images. Finally, most projectors that might come anywhere close to the throw distance required seem to be limited to 2,500 lumens and in the maximum image size supported.
You have a glass rear projection screen that is 6m x 10m (19.69' x 32.81')? Is it an actual rear projection screen or simply glass? Is the screen potentially in direct sunlight on one or both sides?
You have a glass rear projection screen that is 6m x 10m (19.69' x 32.81')? Is it an actual rear projection screen or simply glass? Is the screen potentially in direct sunlight on one or both sides?
How do you envision mounting the projectors? Could the projectors be located anywhere behind or above or below the screen as long as the throw distance is 1m? Is the 1m throw distance based on a specific projector depth and ventilation clearance?
Do you know the actual video signals involved (composite video, component video, VGA, DVI, HDMI, SD/HD-SDI, etc.)? Is latency, delay in the projected image resulting from the video processing, a concern in regards to the live video? For example, are you displaying a live presenter or performance where noticeable delay in the projected image would be unacceptable?
Does it have to be 6 projectors? Have you considered digital signage solutions, like an array of LCD TVs or LED screens instead of rear projection? If it has to be rear projection, what about dozens of picoprojectors instead of 6 projectors, assuming software can be found to manage the image stitching. The image size and requisite intensity to overcome the sun is quite ambitious for a $15,000 budget.
Some quick thoughts...
Many of the ultra-short throw projectors are likely not viable since they typically have to be located above or below the image area and you seem to have very limited room above or below the glass.
Most short throw projectors would have to be located at the horizontal and vertical center of the image they create, meaning probably needing to build some framework or scaffolding construction to support them, which may be challenging within the budget.
You can apply a diffusion film to the inside of the glass but that would not seem to affect any glare or reflections from the exterior. You may need a very bright image to overcome that.
Having to address both composite video and HDMI means some more serious processing. And HDMI from a satellite receiver may mean having to deal with HDCP, which many video processors don't address.
I'm really not trying to be discouraging, but it seems a bit like someone defined an application and a budget before verifying the two are compatible. Add apparently having numerous limitations placed on the potential solutions and it seems likely to be one of those situations where you may be able to do something but the result may not be what was hoped for or envisioned. And that "what is acceptable" aspect can be very difficult to address via a forum environment.
According to BenQ's online calculator, a 3.28' or 1m throw results in a 48.6" x 64.8" image with the center of the lens 7.29" above the top of the image or below the bottom of the image for its native 4:3 format and a 36.45" x 64.8" image with the center of the lens 13.36" above the top of the image or below the bottom of the image for a 16:9 format image. It apparently does not directly support 16:10 or 15:9 formats. It is a fixed lens and has basic +/-30 degree vertical keystone correction capability. The projector itself is 9.9" deep with the power connection and inputs on the rear panel. Street price seems to be $1,050 to $1,100.
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